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June 8th, 2026 :: 3:04 am CDT   

Local Weather Report for
Decatur
Illinois, United States

 Current Decatur Weather Conditions Updated June 8th at 1:54 am 
Overcast
Temperature:77°F Dew Point:66°F
Barometer:29.92 inHg Wind:calm
Humidity:69.4% Visibility:0M
 
 Decatur Weather Forecast Summary  
 
Today
Jun 8th
Tuesday
Jun 9th
Wednesday
Jun 10th
Thursday
Jun 11th
Friday
Jun 12th
Thundershowers Thundershowers Mostly Sunny Mostly Sunny Mostly Sunny
78°F
90°F
71°F
90°F
76°F
90°F
74°F
79°F
65°F
 
 Decatur Detailed Weather Forecast  
 
Monday, June 8th, 2026
Overnight Temperature: 71°F
A mix of cloudy and clear skies.
Morning Temperature: 72°F
Mostly cloudy with showers likely. Chance of a thunderstorm. Windy at times.
Afternoon Temperature: 75°F
A mix of cloud and sun with a few showers. Chance of a thunderstorm. Windy.
Evening Temperature: 72°F
Mostly cloudy with a few showers. Slight chance of a thunderstorm.
Tuesday, June 9th, 2026
Overnight Temperature: 71°F
Mostly clear with showers likely. Slight chance of a thunderstorm.
Morning Temperature: 78°F
Sunny. Chance of a thunderstorm.
Afternoon Temperature: 89°F
Sunny with cloudy periods. Chance of a thunderstorm. Windy at times.
Evening Temperature: 82°F
Clear with a chance of showers or thundershowers. Windy at times.
Wednesday, June 10th, 2026
Overnight Temperature: 76°F
Clear. Chance of a thunderstorm. Windy at times.
Morning Temperature: 79°F
Sunny. Chance of a thunderstorm. Windy at times.
Afternoon Temperature: 89°F
Mostly sunny. Chance of a thunderstorm. Windy.
Evening Temperature: 79°F
A mix of clear and cloudy skies with a chance of showers or thundershowers. Windy.
Thursday, June 11th, 2026
Overnight Temperature: 75°F
Mostly clear with a chance of showers or thundershowers. Windy at times.
Morning Temperature: 79°F
Mostly sunny with a slight chance of showers or thundershowers. Windy at times.
Afternoon Temperature: 89°F
Sunny with a chance of showers or thundershowers. Windy at times.
Evening Temperature: 82°F
Mostly clear with a slight chance of showers or thundershowers. Windy.
Friday, June 12th, 2026
Overnight Temperature: 76°F
A mix of cloudy and clear skies with a chance of showers or thundershowers. Windy.
Morning Temperature: 75°F
Mostly sunny with a chance of showers or thundershowers.
Afternoon Temperature: 78°F
A mix of cloud and sun. Windy at times.
Evening Temperature: 68°F
Mostly clear.
Saturday, June 13th, 2026
Overnight Temperature: 62°F
Clear.
Morning Temperature: 70°F
Sunny. Windy at times.
Afternoon Temperature: 81°F
Sunny. Slight chance of a thunderstorm. Windy at times.
Evening Temperature: 71°F
Mostly clear. Chance of a thunderstorm. Windy at times.
Sunday, June 14th, 2026
Overnight Temperature: 57°F
Clear.
Morning Temperature: 61°F
Mostly sunny.
Afternoon Temperature: 72°F
Mostly sunny.
Evening Temperature: 65°F
Mostly clear.
Monday, June 15th, 2026
Overnight Temperature: 58°F
Clear with cloudy periods.
Morning Temperature: 64°F
A mix of cloud and sun. Windy at times.
Afternoon Temperature: 65°F
Cloudy with a chance of showers. Windy at times.
Evening Temperature: 68°F
Mostly cloudy with a few showers. Windy.
Tuesday, June 16th, 2026
Overnight Temperature: 56°F
A mix of cloudy and clear skies with a chance of showers. Windy at times.
Morning Temperature: 59°F
Sunny. Windy.
Afternoon Temperature: 69°F
Mostly sunny with a slight chance of showers or thundershowers. Windy.
Evening Temperature: 63°F
Clear with a slight chance of showers or thundershowers. Windy at times.





 

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This WeatherCity Weather Forecast for Decatur, Illinois, United States is computed using a computer-generated forecast model and should be considered experimental. Please confirm this weather information with your official weather information office

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